Lubricating-oil pump.



R. KLINGER.

LUBBIGATING OIL PUMP.

APPLICATION FILED D30. 30, 1910.

Patented June 25, 1912.

2 SHEETS-SHEET 1.

five Z 02 TON. D. C.

R. KLIN GER.

LUBRIGATING OIL PUMP. APPLIOATION FILED 1220.30, 1910.

1,030,665. Patented June 25-, 1912.

2 SHEETS-SHEET 2.

RICHARD KLINGER, or GUMPOLLDSKIRGI-IEN, AUSTRIA-HUNGARY.

LUBRIGATING-OIL PUMP.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed December 30, 1910. Serial No. 600,174.

To all whom it may concern Be it known that I, RICHARD KLINGER, subjectof the Emperor of Austria-Hungary, residing at Gumpoldskirchen, LowerAustria, Austria-Hungary, have invented certain new and usefulImprovements in Lubricating-Oil Pumps, of which the following is aspecification.

This invention has for its object to provide a simple and eflicientlubricating oil pump provided in addition to the oil discharge passagewith a valve cont-rolled bypass passage fitted with a sight feed nozzlewhereby the amount of lubricant being supplied by the pump can be seenwhen desired, the supply of such lubricant being readily and accuratelycontrolled by adjustment of a valve that governs a lubricant overflowbranch. For this purpose according to this invention the lubricantdelivery passage of the improved pump is adapted to be closed betweenthe delivery port of the pump and the part to be lubricated and arrangedalongside of such passage is an auxiliary or by-pass passage,communication between which and the delivery port of the pump isestablished through an oil-drop-feed nozzle' fitted with a self-closingvalve. This by pass passage contains a column of liquid through whichthe drops of oil issuing from the drop-feed nozzle rise and can be seenfrom the exterior of the apparatus. With the improved pump it istherefore possible to ascertain the flow of oil to the place to belubricated from the number of drops of oil rising from the drop-feednozzle after the oil delivery passage has been closed.

The fluid through which the drops of oil rise may be glycerin and thechamber containing it is fitted with an inspection glass window and isclosed at the top by a removable plug and at the bottom is fitted withthe sight-feed nozzle. this chamber are in communication with the oildelivery passage.

The oil pump may in some constructions be arranged to supply lubricantto a number of parts or places, in which case all the lubricatingpassages may be closed by a common cylindrical valve formed wit-h atransverse port for each lubricating passage and also with annulargrooves fitted with packing material that serves to separate thelubricating passages from each other. The amount of oil delivered intoeach lubricating passage can be controlled by an adjustable Both ends ofvalve arranged in an overflow passage which leads the excess of oilflowing back to the 011 reservoir.

Figure 1 of the accompanying illustrative drawings is a transversevertical sect-ion and Fig. 2 a front elevation, partly in section,illustrating, by way of example, a lubricating pump embodying thisinvention and intended for supplying four lubrication points.

The casing 64 of the pump is in communication with the oil reservoir bymeans of the suction pipes b. Arranged within the casing a is a rotarypump piston 0 adapted to deliver oil into a passage d, the oil normallypassing to a lubricating passage cl through which it flows in a columnto a pipe 6 forming a continuation of the passage (Z and leading to thepart to be lubricated. or lubrication point.

In the passages d and cl are two non-return valves and 9 that merelyserve to prevent back flow should the lubricating pump be used as asteam-lubricator. Branching from each passage cZ justabove the deliveryport of the pump is an overflow passage h leading back to the oilreservoir and containing avalve j that is adjustable by means of aregulating screw 2'. Each passage OZ is also connected to a by-passpassage 76 that'branches oil therefrom between the delivery port of thepump and the pipe 6, such by-pass passage being enlarged in part to forma chamber charged with glycerin and closed at one side by an inspectionor sight glass Z. The upper end of the glycerin chamber is closed by aremovable screwplug m for filling purposes and its lower end is fittedwith a sight-feed nozzle n containing a self-closing valve.

All the lubricating passages cl are adapted to be closed by a commoncylindrical valve 0 formed with a transverse perforation or port 70 foreach lubricating passage and adapted to be turned by a hand lever Q themovement of which is limited by a stop pin or stud r. The valve 0 isformed between each two lubricating passages d with an annularperipheral groove 3 containing suitable packing material which issupplied thereto and pressed in through a hole fitted with a screw-plugt.

In starting to work with the improved lubricating pump the filling plugsm are first of all removed and the chambers 72 filled with pellucid ortransparent glycerin,

whereupon the plugs m are again screwed home. The ,regulating valves jare then fully opened to allow the air in the pump chamber to escape onthe pump being started, after which a few turns are given to the rotarypiston, by means of a hand-wheel e or anpperating lever w. The pump isnow set, to work at the proper rate of delivery by delicate adjustmentof the regulating valves j, the piston a drawing in the oil through thesuction pipe 6 and delivering it into and through the passages cl to thelubricating passages (Z whence it passes to 7 lines.

the parts to be lubricated, the path of the oil at this time being shownin full lines in Fig. 1. To ascertain with certainty whether the severalplaces to be lubricated are receiving the proper number of drops of oilthe lever g is turned until it bears against the stop pin or stud stop11, the oil being thereby caused to take the path shown in the dashlines andto issue from the nozzles n in the form of drops that rise inthe glycerin and can be seen through the window Z so that from thenumberof drops which pass in a given time it can be seen whether thelubrication is being performed as desired or not. The rate of suchlubrication can be cont-rolled or determined by the regu lating screws2', the excess of oil flowing back to the oil reservoir through thebypass connection it, as shown in dot and dash If the lubrication isbeing efiected at the desired rate it is best to turn the lever 9 backinto its original position in order to avoid the necessity for frequentrenewal of the glycerin which is occasionally entrained by the drops ofoil.

Claim:

In a lubricant supply device, in'combina- I V V V 7 VJCIOD, a casinghavmg an 011 delivery passage through which 011 normally flows 1n acolumn and having also a by-pass liquid containing sight feed passagecommunicating at its discharge end with the oil delivery passage andthrough which the oil may flow dropby-drop, the oil delivery passageterminating in a discharge pipe, a pump for forcing oil at a constantrate through the casing to either of the passages aforesaid, a valveoperable to cause the oil delivered by the pump to flow through eitherof said passages, the casing also having a return passage leading to thesource of oil supply and having another passage which communicates atone end both with the oil delivery passage and with the sight feedpassage and at its other end both with the pump chamber and with thereturn passage, and a valve for controlling the flow of oil through thereturn passage and thereby regulating the rate at which the oil flowsthrough either the sight feed or the oil delivery passage, the valvelast named being operated to regulate the flow as desired during theperiod that the oil is allowed to flow through the sight feed passageand serving to maintain the flow at the rate to which it is thusregulated during the period of normal operation in which the oil iscaused to flow through the oil delivery passage.

RICHARD KLINGER.

Witnesses:

JosEr RUBREICH, AUGUST FUooER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatents,

Washington, D. G.

